UID:
almafu_9959329147102883
Format:
1 online resource (252 pages) :
,
illustrations
ISBN:
9783527651931
,
3527651934
,
9783527651962
,
3527651969
,
9781283592154
,
1283592150
Content:
The importance and actuality of nanotechnology is unabated and will be for years to come. A main challenge is to understand the various properties of certain nanostructures, and how to generate structures with specific properties for use in actual applications in Electrical Engineering and Medicine. One of the most important structures are nanowires, in particular superconducting ones. They are highly promising for future electronics, transporting current without resistance and at scales of a few nanometers. To fabricate wires to certain defined standards however, is a major challenge, and so is the investigation and understanding of these properties in the first place. A promising approach is to use carbon nanotubes as well as DNA structures as templates. Many fundamental theoretical questions are still unanswered, e.g. related to the role of quantum fluctuations. This work is tackling them and provides a detailed analysis of the transport properties of such ultrathin wires. It presents an account of theoretical models, charge transport experiments, and also conveys the latest experimental findings regarding fabrication, measurements, and theoretical analysis. In particular, it is the only available resource for the approach of using DNA and carbon nanotubes for nanowire fabrication. It is intended for graduate students and young researchers interested in nanoscale superconductivity. The readers are assumed to have knowledge of the basics of quantum mechanics and superconductivity.
Note:
Series page; Title page; Copyright page; Preface; Abbreviations; Notations; 1 Introduction; 2 Selected Theoretical Topics Relevant to Superconducting Nanowires; 2.1 Free or Usable Energy of Superconducting Condensates; 2.2 Helmholtz and Gibbs Free Energies; 2.3 Fluctuation Probabilities; 2.4 Work Performed by a Current Source on the Condensate in a Thin Wire; 2.5 Helmholtz Energy of Superconducting Wires; 2.6 Gibbs Energy of Superconducting Wires; 2.7 Relationship between Gibbs and Helmholtz Energy Densities; 2.8 Relationship between Thermal Fluctuations and Usable Energy.
,
2.9 Calculus of Variations2.10 Ginzburg-Landau Equations; 2.11 Little-Parks Effect; 2.12 Kinetic Inductance and the CPR of a Thin Wire; 2.13 Drude Formula and the Density of States; 3 Stewart-McCumber Model; 3.1 Kinetic Inductance and the Amplitude of Small Oscillations; 3.2 Mechanical Analogy for the Stewart-McCumber Model; 3.3 Macroscopic Quantum Phenomena in the Stewart-McCumber Model; 3.4 Schmid-Bulgadaev Quantum Phase Transition in Shunted Junctions; 3.5 Stewart-McCumber Model with Normalized Variables; 4 Fabrication of Nanowires Using Molecular Templates.
,
4.1 Choice of Templating Molecules4.2 DNA Molecules as Templates; 4.3 Significance of the So-Called "White Spots"; 5 Experimental Methods; 5.1 Sample Installation; 5.2 Electronic Transport Measurements; 6 Resistance of Nanowires Made of Superconducting Materials; 6.1 Basic Properties; 6.2 Little's Phase Slips; 6.3 Little's Fit; 6.4 LAMH Model of Phase Slippage at Low Bias Currents; 6.5 Comparing LAMH and Little's Fit; 7 Golubev and Zaikin Theory of Thermally Activated Phase Slips; 8 Stochastic Premature Switching and Kurkijärvi Theory; 8.1 Stochastic Switching Revealed by V-I Characteristics.
,
8.2 "Geiger Counter" for Little's Phase Slips8.3 Measuring Switching Current Distributions; 8.4 Kurkijärvi-Fulton-Dunkleberger (KFD) Transformation; 8.5 Examples of Applying KFD Transformations; 8.6 Inverse KFD Transformation; 8.7 Universal 3/2 Power Law for Phase Slip Barrier; 8.8 Rate of thermally Activated Phase Slips at High Currents; 8.9 Kurkijärvi Dispersion Power Laws of 2/3 and 1/3; 9 Macroscopic Quantum Tunneling in Thin Wires; 9.1 Giordano Model of Quantum Phase Slips (QPS) in Thin Wires; 9.2 Experimental Tests of the Giordano Model; 9.3 Golubev and Zaikin QPS Theory.
,
9.4 Khlebnikov Theory9.5 Spheres of Influence of QPS and TAPS Regimes; 9.6 Kurkijärvi-Garg Model; 9.7 Theorem: Inverse Relationship between Dispersion and the Slope of the Switching Rate Curve; 10 Superconductor-Insulator Transition (SIT) in Thin and Short Wires; 10.1 Simple Model of SIT in Thin Wires; 11 Bardeen Formula for the Temperature Dependence of the Critical Current; Appendix A: Superconductivity in MoGe Alloys; Appendix B: Variance and the Variance Estimator; Appendix C: Problems and Solutions; References; Index.
Additional Edition:
Print version: Bezryadin, Alexey. Superconductivity in nanowires. Weinheim : Wiley-VCH, ©2013 ISBN 9783527408320
Language:
English
Keywords:
Electronic books.
;
Electronic books.
;
Electronic books.
URL:
https://onlinelibrary.wiley.com/doi/book/10.1002/9783527651931
URL:
https://onlinelibrary.wiley.com/doi/book/10.1002/9783527651931
URL:
https://onlinelibrary.wiley.com/doi/book/10.1002/9783527651931
Bookmarklink
